# prusa3d/PrusaSlicer

G-code generator for 3D printers (RepRap, Makerbot, Ultimaker etc.)

Repository: https://github.com/prusa3d/PrusaSlicer
Canonical: https://ross.abutalabs.com/products/prusaslicer
Homepage: https://www.prusa3d.com/prusaslicer/
Language: C++
License: AGPL-3.0
License Family: copyleft
Last push: 2026-06-25T20:49:52+00:00

## Health v2 (maintenance only)
Score: 87/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 89, release rhythm 78, longevity 100
- inputs: {"age_days": 3837, "days_push": 69, "days_rel": 69, "gap_med": 81, "n_releases_24m": 8}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 9244, forks 2312 (observed 2026-08-28T04:10:29.044705+00:00)

## What it is
PrusaSlicer is a G-code generator for 3D printers that converts 3D models (STL, OBJ, AMF) into print instructions for FFF printers or PNG layers for mSLA printers. It is a C++ application with a full GUI and a complete command-line interface built on the libslic3r slicing library, compatible with RepRap-based printers and various CNC controllers.

## Use cases
- convert STL models to G-code for 3D printing
- slice models for resin mSLA printers
- prepare multi-material prints with multiple extruders
- batch-slice 3D models from the command line
- auto-repair broken STL files before printing
- customize print settings like infill, supports, and cooling

## When to choose
- you need a mature, actively maintained slicer for FFF or mSLA 3D printers
- you want both a GUI and scriptable command-line slicing
- you use RepRap/Marlin/Prusa firmware printers or LinuxCNC controllers
- you need multi-material and per-object print settings

## When to avoid
- you need slicing for non-3D-printing CNC workflows with specialized CAM features
- you want a lightweight library-only solution without a bundled application
- you require a slicer with a permissive license (it is AGPL-3.0)

## Facets
- artifact type: application
- maturity: active
- function: gui, cli, graphics, simulation
- domain: hardware, cross-platform, developer-tools
- platform: windows, cpp, cli
- tags: 3d-printing, slicer, gcode, stl, fff, msla, reprap, linux, macos

## Member repositories
- prusa3d/PrusaSlicer (main) score 87

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:29.044705+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:23:14.336779+00:00, confidence not recorded.
  - readme: https://github.com/prusa3d/PrusaSlicer (fetched 2026-08-28T04:10:29.044705+00:00, sha d7fabc96a2a4)
  - homepage: https://www.prusa3d.com/prusaslicer/ (fetched 2026-08-29T08:22:58.086874+00:00, sha ff4a85d97c2d)
- Data as of 2026-08-30T08:39:29.467469+00:00.